Supplies high-precision sapphire products polished up to 10/5, flatness up to lambda/10, size to 500 mm, and vacuum coating on sapphire. Other optical products made with CaF2, MgF2, BaF2, LiF, ZnSe, ZnS, Si, Ge, quartz, and ZrO2. YAG: Cr4, Er, Ho, Nd, Ce, Yb, and YAP: Tm, Ho.
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